On The Edge Racing

On The Edge Racing are a Classic Sidecar racing team based in Birley Edge, Sheffield.

The bike we have been racing since 2009 is a Lynx Imp.
Briefly, this is a classic eligible, but newly built Lynx chassis fitted with a race tuned Hillman Imp engine.

The chassis is a replica of a Classic Period sidecar outfit that has been updated by Windle Engineering. It features the following:

Leading-link forks
5 Twin-piston Lockheed Racing brake calipers
10" X 5" Cast alloy wheels fitted with Yokohama race tyres
No suspension on either rear or sidecar wheels

The engine has had the capacity increased to 998cc and is fitted with the following parts to improve performance and reliability:

Balanced and lightened crankshaft
Lightened and polished connecting rods
ARP big end bolts.
1/4" Steel block strengthener
Extended and baffled sump
Forged race pistons
Full race (R23) camshaft
Vernier camshaft sprocket
Ported and skimmed cylinder head, fitted with "Wills" rings
Oversized Valves with competition valve springs and Rodwell Motorsport titanium valve collars.
2 Weber DCOE 40 carburettors
High capacity oil pump

The transmission of the outfit differs from most similar machines in the class, as it has no "Pearson" drive, instead it uses a Hemmings belt drive and hydraulic clutch to drive the TT Industries 5 speed gearbox.